New information on b-delayed neutron emission from 12,14Be

U C Bergmann; L Axelsson; M J G Borge; V N Fedoseyev; C Forssen; H O U Fynbo; S Grévy; P Hornshoj; Y Jading; B Jonson; U Köster; Karin Markenroth Bloch; F M Marqués; V I Mishin; T Nilsson; G Nyman; A Oberstedt; H L Ravn; K Riisager; G Schrieder; V Sebastian; H Simon; O Tengblad; F Wenander; K Wilhelmsen Rolander; The ISOLDE collaboration

doi:10.1016/S0375-9474(99)00348-6

New information on b-delayed neutron emission from 12,14Be

U C Bergmann, L Axelsson, M J G Borge, V N Fedoseyev, C Forssen, H O U Fynbo, S Grévy, P Hornshoj, Y Jading, B Jonson, U Köster, Karin Markenroth Bloch, F M Marqués, V I Mishin, T Nilsson, G Nyman, A Oberstedt, H L Ravn, K Riisager, G SchriederV Sebastian, H Simon, O Tengblad, F Wenander, K Wilhelmsen Rolander, The ISOLDE collaboration

Chalmers Tekniska Högskola

Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

Sammanfattning

The β-delayed neutron branches from neutron-rich Be-isotopes have been measured with a setup sensitive down to thermal energies. For 14Be a new value of Pn = 101 ± 4% has been found for the total neutron-emission probability and an upper limit of 2.4% (95% confidence level) is imposed on the combination P2n + 3P3n of multi-neutron emission probabilities. Moreover, an improved value of Pn = 0.50 ± 0.03% has been obtained for 12Be. A time-correlation method, previously developed for a continuous radioactive beam to determine neutron branching ratios, has been revised and adapted to the pulsed secondary beam at ISOLDE, CERN.

Originalspråk	engelska
Sidor (från-till)	129-145
Tidskrift	Nuclear Physics, Section A
Volym	658
Nummer	2
DOI	https://doi.org/10.1016/S0375-9474(99)00348-6
Status	Published - 1999
Externt publicerad	Ja

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10.1016/S0375-9474(99)00348-6

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Bergmann, U. C., Axelsson, L., Borge, M. J. G., Fedoseyev, V. N., Forssen, C., Fynbo, H. O. U., Grévy, S., Hornshoj, P., Jading, Y., Jonson, B., Köster, U., Markenroth Bloch, K., Marqués, F. M., Mishin, V. I., Nilsson, T., Nyman, G., Oberstedt, A., Ravn, H. L., Riisager, K., ... collaboration, T. ISOLDE. (1999). New information on b-delayed neutron emission from 12,14Be. Nuclear Physics, Section A, 658(2), 129-145. https://doi.org/10.1016/S0375-9474(99)00348-6

@article{77be0a3b7b5a43c9824ef66366579cce,

title = "New information on b-delayed neutron emission from 12,14Be",

abstract = "The β-delayed neutron branches from neutron-rich Be-isotopes have been measured with a setup sensitive down to thermal energies. For 14Be a new value of Pn = 101 ± 4% has been found for the total neutron-emission probability and an upper limit of 2.4% (95% confidence level) is imposed on the combination P2n + 3P3n of multi-neutron emission probabilities. Moreover, an improved value of Pn = 0.50 ± 0.03% has been obtained for 12Be. A time-correlation method, previously developed for a continuous radioactive beam to determine neutron branching ratios, has been revised and adapted to the pulsed secondary beam at ISOLDE, CERN.",

keywords = "Radioactivity",

author = "Bergmann, {U C} and L Axelsson and Borge, {M J G} and Fedoseyev, {V N} and C Forssen and Fynbo, {H O U} and S Gr{\'e}vy and P Hornshoj and Y Jading and B Jonson and U K{\"o}ster and {Markenroth Bloch}, Karin and Marqu{\'e}s, {F M} and Mishin, {V I} and T Nilsson and G Nyman and A Oberstedt and Ravn, {H L} and K Riisager and G Schrieder and V Sebastian and H Simon and O Tengblad and F Wenander and {Wilhelmsen Rolander}, K and collaboration, {The ISOLDE}",

year = "1999",

doi = "10.1016/S0375-9474(99)00348-6",

language = "English",

volume = "658",

pages = "129--145",

journal = "Nuclear Physics, Section A",

issn = "0375-9474",

publisher = "Elsevier",

number = "2",

}

Bergmann, UC, Axelsson, L, Borge, MJG, Fedoseyev, VN, Forssen, C, Fynbo, HOU, Grévy, S, Hornshoj, P, Jading, Y, Jonson, B, Köster, U, Markenroth Bloch, K, Marqués, FM, Mishin, VI, Nilsson, T, Nyman, G, Oberstedt, A, Ravn, HL, Riisager, K, Schrieder, G, Sebastian, V, Simon, H, Tengblad, O, Wenander, F, Wilhelmsen Rolander, K & collaboration, TISOLDE 1999, 'New information on b-delayed neutron emission from 12,14Be', Nuclear Physics, Section A, vol. 658, nr. 2, s. 129-145. https://doi.org/10.1016/S0375-9474(99)00348-6

TY - JOUR

T1 - New information on b-delayed neutron emission from 12,14Be

AU - Bergmann, U C

AU - Axelsson, L

AU - Borge, M J G

AU - Fedoseyev, V N

AU - Forssen, C

AU - Fynbo, H O U

AU - Grévy, S

AU - Hornshoj, P

AU - Jading, Y

AU - Jonson, B

AU - Köster, U

AU - Markenroth Bloch, Karin

AU - Marqués, F M

AU - Mishin, V I

AU - Nilsson, T

AU - Nyman, G

AU - Oberstedt, A

AU - Ravn, H L

AU - Riisager, K

AU - Schrieder, G

AU - Sebastian, V

AU - Simon, H

AU - Tengblad, O

AU - Wenander, F

AU - Wilhelmsen Rolander, K

AU - collaboration, The ISOLDE

PY - 1999

Y1 - 1999

N2 - The β-delayed neutron branches from neutron-rich Be-isotopes have been measured with a setup sensitive down to thermal energies. For 14Be a new value of Pn = 101 ± 4% has been found for the total neutron-emission probability and an upper limit of 2.4% (95% confidence level) is imposed on the combination P2n + 3P3n of multi-neutron emission probabilities. Moreover, an improved value of Pn = 0.50 ± 0.03% has been obtained for 12Be. A time-correlation method, previously developed for a continuous radioactive beam to determine neutron branching ratios, has been revised and adapted to the pulsed secondary beam at ISOLDE, CERN.

AB - The β-delayed neutron branches from neutron-rich Be-isotopes have been measured with a setup sensitive down to thermal energies. For 14Be a new value of Pn = 101 ± 4% has been found for the total neutron-emission probability and an upper limit of 2.4% (95% confidence level) is imposed on the combination P2n + 3P3n of multi-neutron emission probabilities. Moreover, an improved value of Pn = 0.50 ± 0.03% has been obtained for 12Be. A time-correlation method, previously developed for a continuous radioactive beam to determine neutron branching ratios, has been revised and adapted to the pulsed secondary beam at ISOLDE, CERN.

KW - Radioactivity

U2 - 10.1016/S0375-9474(99)00348-6

DO - 10.1016/S0375-9474(99)00348-6

M3 - Article

SN - 0375-9474

VL - 658

SP - 129

EP - 145

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 2

ER -

New information on b-delayed neutron emission from 12,14Be

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